Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1097/SS.0000000000000117
Titel (primär) Rare earth elements in two luvisols developed from loess under arable and forest land use in Bavaria, Germany: Concentrations, stocks, and potential mobilities
Autor Mihajlovic, J.; Stärk, H.-J.; Wennrich, R.; Du Laing, G.; Rinklebe, J.
Quelle Soil Science
Erscheinungsjahr 2015
Department ANA
Band/Volume 180
Heft 3
Seite von 107
Seite bis 123
Sprache englisch
Keywords scandium, yttrium, lanthanum, lanthanoids, clay, illuviation
UFZ Querschnittsthemen RU4;
Abstract Abstract: Rare earth elements (REE) are of increasing interest in many industrial key technologies and in animal/plant production. Their environmental impacts cannot be forecasted because of knowledge gaps concerning the presence and the mobility of REE in soils and critical concentrations with respect to health effects on humans and other biota. In this study, the soil's chemical and physical characteristics were compared to REE concentrations and REE mobilities, as determined by ammonium nitrate/aqua regia ratio, in Luvisols developed from loess under arable and forest land according to genetic horizons in complete soil profiles in Germany. Single REE concentrations varied from 0.17 mg kg−1 (Lu) to 77.3 mg kg−1 (Ce). We detected the highest REE concentrations in illuvial B-horizons and found a significant correlation between REE and clay content/Fe-Mn oxides. This is probably because REE adsorb onto clay minerals and Fe-Mn oxides (found as coatings on clay minerals) and migrate with the colloids. Aqua regia–extractable REE concentrations ranged from 166 to 211 mg kg−1 in the soil profile under forest land and from 176 to 230 mg kg−1 under arable land. Stocks of REE in the top 100 cm are significantly higher under arable land use (277 g m−2) than under forest land use (252 g m−2), which might be caused by phosphorous fertilization and a significantly higher bulk density of the arable topsoil. The higher pH of the arable land leads to a lower potential mobility of REE in comparison with the soil under forest land.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16928
Mihajlovic, J., Stärk, H.-J., Wennrich, R., Du Laing, G., Rinklebe, J. (2015):
Rare earth elements in two luvisols developed from loess under arable and forest land use in Bavaria, Germany: Concentrations, stocks, and potential mobilities
Soil Sci. 180 (3), 107 - 123 10.1097/SS.0000000000000117